Two very recent papers by [1]} and [2]} provide contextual extensions of [3]}, [4]}. As in our work, their goal is to reach an effective population-level decision at the end of the experiment. Their results are asymptotic and assume contexts are i.i.d, making them comparable to our study of efficient adaptivity in Section  but not our study of robustness to nonstationarity in Section . Their models can be viewed as a special case of a linear contextual model, like ours, but where the context vectors are standard basis vectors. Both papers characterize asymptotic limits through a two-player game of the style studied in [5]}, [4]} and other papers above.
